Was wondering what services should be done at 50k miles? I have already changed the oil, coolant and brake fluids. Thank a million.

It couldnt hurt to do the trans fluid and filter now.

Brake fluid every 2 years
Coolant every 3 years
air + fuel filters every 4yr/60k

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1980 500SE/AMG Euro
1981 500SEL Euro
1982 380SEL
1983 300TD
1983 500SEC/AMG Euro
1984 500SEC
1984 300TD Euro
1986 190E 2.3-16
1986 190E 2.3
1987 300D
1997 C36 AMG
2003 C320T 4matic

past: 1969 280SE 4.5 | 1978 240D | 1978 300D | 1981 300SD | 1981 300SD | 1982 300CD | 1983 300CD | 1983 300SD | 1983 380SEC | 1984 300D | 1984 300D | 1984 300TD | 1984 500SEL | 1984 300SD | 1985 300D | 1986 300E | 1986 560SEL | 1986 560SEL/Carat | 1987 560SEC | 1991 300D 2.5 | 2006 R350

which Spark Plugs are the best to use on the M112? Which kind of Tranny fluid is the best? Thanks agian

ah yes I forgot plugs- every 80k/4 years on a 98 (IIRC).

Bosch plugs, single tip will be just fine, not +2 or +4.
98 will have a 722.6 electric trans, best to use the MB fluid for it, unless someone else knows of a suitable substitute.

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1980 500SE/AMG Euro
1981 500SEL Euro
1982 380SEL
1983 300TD
1983 500SEC/AMG Euro
1984 500SEC
1984 300TD Euro
1986 190E 2.3-16
1986 190E 2.3
1987 300D
1997 C36 AMG
2003 C320T 4matic

past: 1969 280SE 4.5 | 1978 240D | 1978 300D | 1981 300SD | 1981 300SD | 1982 300CD | 1983 300CD | 1983 300SD | 1983 380SEC | 1984 300D | 1984 300D | 1984 300TD | 1984 500SEL | 1984 300SD | 1985 300D | 1986 300E | 1986 560SEL | 1986 560SEL/Carat | 1987 560SEC | 1991 300D 2.5 | 2006 R350

All of that info is in the owner's manual along with a whole lot of other good and informative stuff. If you don't have one, call 1-800-FOR-MERC(EDES) to order one. They're not expensive.

__________________
Len
'59 220S Cabriolet-SOLD and living happily in Malta
'83 240D 351,500 miles original owner-SOLD
'88 560SL 41,000 miles - totaled and parted out
https://sites.google.com/site/mercedesstuff/home
'99 E300 turbo 227,500 miles
'03 SLK320 40,000 miles - gave to my daughter
'14 Smart electric coupe 28,500 miles
'14 Smart electric cabriolet 28,500 miles
'15 Smart electric coupe 28,000 miles

+1 +1

OEM plugs are discontinued. Bosch and NKG make suitable replacements. Don't use resistor type plugs in your engine.

With only 5K miles per year all maintenance should be based on time not miles. Are you using your FSS? It will compensate for your driving conditions. Use Mobil 1 0W40 syn with fleece filter.

How about Fuel filter?